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A platform for research: civil engineering, architecture and urbanism
Casing pipe well cementing cement slurry system
The invention relates to the field of oilfield chemistry and oil-gas well cementing materials, relates to a casing pipe well cementing cement slurry system, and particularly relates to a well cementing cement slurry system with low density, low viscosity, strong thixotropy and long thickening time, which is suitable for a shallow layer. The system comprises a gelling system, a dewatering agent, zinc oxide, a dispersing agent, hydrogel and water. The cement slurry system disclosed by the invention not only has low viscosity and strong thixotropic property, but also has low density and long thickening time, and can meet the requirement of an annulus rotary grouting method on secondary well cementation of a free casing section.
本发明涉及油田化学及油气井固井材料领域，涉及一种套管固井用水泥浆体系，具体涉及一种适用于浅层的低密度‑低粘度‑强触变‑长稠化时间的固井水泥浆体系。所述体系包括胶凝体系，降水剂，氧化锌，分散剂，水凝胶和水。本发明水泥浆体系既具有低粘度和强触变的性能，同时又具有低密度和长稠化时间的性能，能够满足环空旋转注浆方法对自由套管段进行二次固井的要求。
Casing pipe well cementing cement slurry system
The invention relates to the field of oilfield chemistry and oil-gas well cementing materials, relates to a casing pipe well cementing cement slurry system, and particularly relates to a well cementing cement slurry system with low density, low viscosity, strong thixotropy and long thickening time, which is suitable for a shallow layer. The system comprises a gelling system, a dewatering agent, zinc oxide, a dispersing agent, hydrogel and water. The cement slurry system disclosed by the invention not only has low viscosity and strong thixotropic property, but also has low density and long thickening time, and can meet the requirement of an annulus rotary grouting method on secondary well cementation of a free casing section.
本发明涉及油田化学及油气井固井材料领域，涉及一种套管固井用水泥浆体系，具体涉及一种适用于浅层的低密度‑低粘度‑强触变‑长稠化时间的固井水泥浆体系。所述体系包括胶凝体系，降水剂，氧化锌，分散剂，水凝胶和水。本发明水泥浆体系既具有低粘度和强触变的性能，同时又具有低密度和长稠化时间的性能，能够满足环空旋转注浆方法对自由套管段进行二次固井的要求。
Casing pipe well cementing cement slurry system
一种套管固井用水泥浆体系
YUAN JIE (author) / XU JIAJUN (author) / LYU JIANHAI (author) / XIE WENXIAN (author) / XIANG SHAOLIANG (author) / TIAN YU (author) / TENG TENG (author) / XU ZHONG (author) / WANG QING (author) / WANG YU (author)
2020-05-05
Patent
Electronic Resource
Chinese
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